Analysis
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max time kernel
173s -
max time network
180s -
platform
windows10-2004_x64 -
resource
win10v2004-en-20220113 -
submitted
16-02-2022 22:46
Static task
static1
Behavioral task
behavioral1
Sample
9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe
Resource
win10v2004-en-20220113
General
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Target
9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe
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Size
916KB
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MD5
3bfcba2dd05e1c75f86c008f4d245f62
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SHA1
fa37b947772eb8997a751f18fad9c1ca7f7f1151
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SHA256
9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c
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SHA512
4fc4bcc05bee7c60c2385c8ad28acd0387f39ca89979e83f17e76043501a07f02dae1d517d16a5f79a6b880ff85a462950acc0aebdca9028cf57be7ed229d6b5
Malware Config
Extracted
C:\DECRYPT-FILES.txt
maze
http://aoacugmutagkwctu.onion/8802099ce54b4a02
https://mazedecrypt.top/8802099ce54b4a02
Signatures
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Maze
Ransomware family also known as ChaCha.
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Drops startup file 4 IoCs
description ioc Process File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\DECRYPT-FILES.txt 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\gkukv57ef.tmp 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File created C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\DECRYPT-FILES.txt 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Word\STARTUP\gkukv57ef.tmp 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Drops file in Program Files directory 28 IoCs
description ioc Process File opened for modification C:\Program Files\DebugUpdate.odt 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File opened for modification C:\Program Files\DisableInstall.mov 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File opened for modification C:\Program Files\gkukv57ef.tmp 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File opened for modification C:\Program Files\InstallDisconnect.snd 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File opened for modification C:\Program Files\PublishInitialize.3gpp 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File opened for modification C:\Program Files\ResizePop.html 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File opened for modification C:\Program Files\InvokeSwitch.rtf 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File opened for modification C:\Program Files\UninstallWatch.lock 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File created C:\Program Files (x86)\DECRYPT-FILES.txt 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File opened for modification C:\Program Files\ConfirmDebug.ps1 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File opened for modification C:\Program Files\FindExit.gif 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File opened for modification C:\Program Files\HideConfirm.xps 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File opened for modification C:\Program Files\NewUnlock.vsx 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File opened for modification C:\Program Files\RemoveGrant.jfif 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File opened for modification C:\Program Files\JoinConnect.css 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File opened for modification C:\Program Files\ReceiveResize.mpeg 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File opened for modification C:\Program Files\RedoMeasure.7z 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File opened for modification C:\Program Files\SyncSkip.bat 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File created C:\Program Files\DECRYPT-FILES.txt 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File opened for modification C:\Program Files (x86)\gkukv57ef.tmp 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File opened for modification C:\Program Files\CompleteGrant.clr 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File opened for modification C:\Program Files\ConvertComplete.7z 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File opened for modification C:\Program Files\DenySet.avi 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File opened for modification C:\Program Files\GroupConfirm.au3 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File opened for modification C:\Program Files\RestartRedo.ttf 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File opened for modification C:\Program Files\StartDismount.vssx 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File opened for modification C:\Program Files\ApproveReset.potm 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe File opened for modification C:\Program Files\FindEnable.search-ms 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe -
Drops file in Windows directory 6 IoCs
description ioc Process File opened for modification C:\Windows\SoftwareDistribution\DataStore\DataStore.edb svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm svchost.exe File opened for modification C:\Windows\SoftwareDistribution\ReportingEvents.log svchost.exe File opened for modification C:\Windows\WindowsUpdate.log svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk svchost.exe File opened for modification C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log svchost.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3500 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe 3500 9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe -
Suspicious use of AdjustPrivilegeToken 9 IoCs
description pid Process Token: SeBackupPrivilege 5004 vssvc.exe Token: SeRestorePrivilege 5004 vssvc.exe Token: SeAuditPrivilege 5004 vssvc.exe Token: SeShutdownPrivilege 4268 svchost.exe Token: SeCreatePagefilePrivilege 4268 svchost.exe Token: SeShutdownPrivilege 4268 svchost.exe Token: SeCreatePagefilePrivilege 4268 svchost.exe Token: SeShutdownPrivilege 4268 svchost.exe Token: SeCreatePagefilePrivilege 4268 svchost.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe"C:\Users\Admin\AppData\Local\Temp\9be70b7fe15cd64aed5b1adc88c2d5270bce534d167c4a42d143ae0059c3da1c.exe"1⤵
- Drops startup file
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
PID:3500
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:5004
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:4268